Price Match Guarantee JBL CSS8018 8" High-Output Multi-Tap Ceiling Speaker JBL's Commercial Series Ceiling Speakers provide excellent performance for paging and background music applications. High sensitivity across the product line provides maximum sound level, even at low tap settings. For installation convenience, the speaker grille and transformer are pre-attached to the driver. Grilles are painted, zinc-plated, cold-rolled steel. The 8-Inch (200mm) models feature a standard 11.25-Inch (286mm) bolt-mounting diameter. Matching CSS back cans are made of zinc-plated steel with powder-coated finish. CSS steel preinstall back cans can be installed, wired, and inspected prior to installation of the speaker. Product Highlights: Affordably priced, high-quality dual-cone type ceiling speaker Very high sensitivity provides maximum sound levels using minimal amplifier power Compatible with JBL Professional CSS-BB8 Backcan CSS-TR4/8 Tile Rails Hear low subs and soaring vocals with a frequency